Exploring phylogenetic relationships of Pteraspidiformes heterostracans (stem-gnathostomes) using continuous and discrete characters
Author
Randle, Emma
Author
Sansom, Robert S.
text
Journal of Systematic Palaeontology
2017
2016-07-20
15
7
583
599
http://dx.doi.org/10.1080/14772019.2016.1208293
journal article
10.1080/14772019.2016.1208293
1478-0941
10883180
BF5255A1-1417-432B-AC64-BF132A0BCC65
Lampraspis
Denison, 1970
Type
species.
Lampraspis tuberculata
Denison, 1970
.
Revised diagnosis.
A
Protaspididae
with wide shield and branchial opening in advance of the posterior end of dorsal plate; ornament of undulating tuberculated ridges; pre-oral field which lacks a pre-oral surface; rostral plate with rounded orbital notch; rostral plate well rounded anteriorly and separated from the dorsal plate by an orbito-pineal belt; scale-like dorsal spine and scale-like cornual plates.